28525240

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{15173}}^1$

素因数の和:15231

約数の個数: 32

約数和(自身を含む): 65551680

約数和(自身を除く): 37026440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 15173, 30346, 60692, 75865, 121384, 151730, 303460, 606920, 713131, 1426262, 2852524, 3565655, 5705048, 7131310, 14262620, 28525240]

約数ペア:

[(1, 28525240), (2, 14262620), (4, 7131310), (5, 5705048), (8, 3565655), (10, 2852524), (20, 1426262), (40, 713131), (47, 606920), (94, 303460), (188, 151730), (235, 121384), (376, 75865), (470, 60692), (940, 30346), (1880, 15173)]